EDMONTON, AB, Feb. 5, 2014 /CNW/ - The Transportation Safety Board of
Canada (TSB) today released its investigation report (A13W0070) into a collision with terrain of a Bell 206B helicopter near Fort
On 29 May 2013, the Bell 206B helicopter operated by Wood Buffalo
Helicopters was conducting wildlife survey work approximately 75
nautical miles north of Fort McMurray, Alberta, with one pilot and two
passengers on board. While looking for a landing site, the helicopter
entered an un-commanded rotation and descended into a stand of trees.
The emergency locator transmitter activated on impact. There was no
post-impact fire. The pilot and rear-seat passenger were fatally
injured; the front-seat passenger was seriously injured.
The investigation found that the helicopter had entered a flight
condition that resulted in a loss of tail rotor effectiveness, which
caused a loss of control at an altitude that made recovery impossible
and resulted in a collision with terrain.
Since the occurrence, Wood Buffalo Helicopters has made changes to its
pilots' training forms to document that loss of tail rotor
effectiveness (LTE) instruction was completed during their technical
ground training and flight training programs. Wood Buffalo Helicopters
also conducted an internal LTE awareness campaign through a company
safety meeting as well as through the creation and distribution of an
operations bulletin on LTE and the hazards related to slow and low
The TSB is an independent agency that investigates marine, pipeline,
railway and aviation transportation occurrences. Its sole aim is the
advancement of transportation safety. It is not the function of the
Board to assign fault or determine civil or criminal liability.
SOURCE: Transportation Safety Board of Canada
For further information:
Transportation Safety Board of Canada
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